Winch



Nv. 30 ,1926. l

- G. H; GILMAN WINCH AOriginal Filed August 18, 1921 4 Sheets-Sheet l Amm WWW... mmm. E, mmm. 9mm Re.

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Original Filed Angus-HfI 18, 1921 4 Sheets-Sheet 3 fos 5.

Nov. 30 1926.

G. H. GILMAN WINCH Original Filed August 18, 1921 4 Sheets-Sheet -4 00 uw; l

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Patented Nov. 39, 1926..

messie PATENT OFFICE.

GEORGE H. GILMAN, GF BELMONT, MAESACI-IUSETTS.

WINCH.

Application filed August 18, 1921, Seria1.No. 493,200. Renewed May 10, `1926.

My invention relates to winches, and particularly but not exclusively to a portable winch arranged for attachment to a post as for example a mine column.

My invention will be best understood from the followingl description when read in the light of the accompanying drawings of a specific embodiment of my invention selected for illustrative purposes, while the scope of the invention will be more particularly pointed out in the appended claims.

In the drawings Fig. 1 shows a longitudinal section of the submitted embodiment of my invention;

Figs. 2, 3 and 4 respectively are sections on the lines 2 2, 3 3 and 4 4 of Fig. 1;

Figs. 5, 6 and 7 respectively are sections on the lines 5 5, (3 6 and 7 7 of Fig. 3 with the rotors omitted;

Figs. 8 and 9 respectively are sections cor- 'esponding to Figs. G and 7 with the valve moved to reverse the motor;

Fig. 10 is a perspective of the motor controlling valve;

Fig. 11 is a section on the line 11 11 of Fig. 3;

Fig. 12 is a fragmentary end view of the machine Fig. 13 Figs. 1 and 12, and

Figs. 14, 15 and 16 respectively are sections on the lines 14 14, 15 15 and 16-16 of Fig. 1.

In general, the embodiment of my invention, which I have submitted for illustrative purposes, comprises a cable drum, a fluid pressure motor and reduction gearing for rotating the drum, a clutch mechanism for connecting and disconnecting the drum from thc reduction gearing, a brake, and means for attaching the machine to its support.

rIhe support for the machine is indicated as a mine column 1, to which the winch is adapted to be clamped in any position longitudinally thereof or angularly thereto. Herein for this purpose, the base member 3 of the machine is provided at diametrically opposite portions with feet 5 having semicircular recesses 7 conforming to the exterior surface of the mine column. For engaging the sides of the mine column opposite the feet are shown clips 9 having similar semicylindrical recesses 11, and for clamping the clips and the feet to each other and to the mine column, the clips and feet are each is a section on the line 13 13 of pr-ovided with oppositely extending flanges 13 corres vending flanOes of the feet and clips having aligned perforations receivingV the bolts 15.

As illustrated, the casing for the fluid operated parts of the motor is provided by the base member 3, the peripheral member 17 and a cover 19 spaced from the base member by means of the peripheral member.

As shown, the motor is of the rotary expansible chamber type and comprises three gear members, a central gear member constituting a rotor and two side gear members constituting rotary abutments for said rotor. The rotor comprises a disk 21 journalled by means of an anti-friction bearing 23 on the pillar 25 arranged axially of the base member 3 and formed integrally therewith. At opposite sides thereof the disk 21 is provided with annular flanges 27 and 29, while the base member 3 is provided with a cavity 31 providing a cylindrical wall 33, and the cover with an opening providing a cylindrical wall 35. The flanges 27 and 29 are arranged in close proximity to and in overlapping relation with the cylindrical walls 33 and 35. For rendering fluid-tight the joint between the flanges and cylindrical walls I provide packings in the form of split spring rings 37 carried in recesses 39 in the base member and cover.

As illustrated, exteriorly of the flanges 27 and 29, the disk 21 of the rotor is formed with a portion 41 constructed to form a continuous series of gear teeth 43. On opposite sides of the portion `41 and secured to the disk are rings 45 each as shown provided with six evenly spaced gear teeth 47 of the same size and pitch-diameter as the gear teeth 43 and so located that each of the teeth 47 is above a tooth 43. For convenience of manufacture, the disk 21 and the rings 45 are formed independently and secured together in any suitable way. As shown I have provided for this purpose the pins-49 extending through the aligned teeth 47 and 43.

Herein the side gear members of the motor each comprise a disk 51 having formed thereon a series of teeth 53 for meshing with the teeth 43 of the rotor. On opposite sides of the disk 41 are plates 55 having oppositely located recesses 57 for meshing with the teeth 47 of the rotor. The plates 55 are supported on hubs 59 formed integrally with the disk 51, and for securing the plates 55 to the disk 51 I herein provide the pins 49 serving a purpose similar to the pins 19 ot the rotor.

rllhe end portions oit' the hubs 59 ot the side gear members ot' the motor are shown as re duced to provide oppositely extending spindles 61 which are journalled in anti-friction bearings 03 carried by the cover 19 and base 3. The easing t'or the anti-friction bearings comprises sleeves 65 and integrally formed With the sleeves, iianges G7, the sleeves being received in cylindrical recesses formed in the cover and base. As best shown by Figs. 17 $1-, 5 and 6, herein the base 3 is provided with a raised portion 69 providingan annular Hat surface 71. with Which the flat side surfaces oi' the gear members contact, and providingI a peripheral annular surface 73 engaging the central bore ot the casing,` 17, Which bore the peripheral Jfaces ot' the gear teeth ot' the rotor Contact. Each bore 77 formed in the member 17 tor the side gear members of the motor is termed adjacent the base 3 with a recess 79 which receives the iiange 67 of the side gear member antifriction bearings. A portion ot the flange 67 is cut away to 'form a surface 81 contorni` ing to the surface 73 oi the raised portion 69 ot the base 3. rlfhe surface 73 is ot the same height as the thickness ot the flange 67 and thereby is provided a continuous surface Which contacts the sides of the motor gear members. It .vili be noted by this construction that rotation ot the flange 67 relative the member 17 is prevented and that the member 17 is prevented from rotating relative to the base member 3. because the 'flange ot' the anti-friction bearing` may not rotate relatively to the member 17 and the sleeve of the anti-triction bearing is in engagement With the base. On the opposite side ot the motor the cover 19 is shown as constructed With a raised portion similiar to the raised portion 69 oi' the base and servingr the same purpose, which cover is locked from rotation relatively to the member 17 by the antifrietion bearing casing' in the saine Way.

At the point ot intersection of the bores 7 5 and 77 respectively receiving the central and si-de gear members, the member 17 is shown as formed with induction and eduction ports 83 and 85, a revesing valve being` provided to connect the port E33 adjacent one side gear member and the port 85 adjacent the other side gear member in pairs to either the inlet or the exhaust in order to provide a. motor for rotation in either direction.

For controlling the induction and eduction ot motive fluid to and trom the motor I have shown at one side ot the casing` mem ber 17 a valve casing 87 forming a seat for the cylindrical valve 89. lin themember 17 and communicating with the valve seat are passages 91 located in spaced relation and each communicating with a passage 93 formed in the peripheral Wall ot the member 17 and leading` to a port 89 :tor the motor. In the same plane as each ot the ports 91 is a passage 95 which opens through the surface ot the member 17 adjacent the base member and communicates with a passage 97 termed in said member. The passage 97 leads to a passage 99 opening' into the port 85 i'or the motor.

1n the valve casing and opening into the valve seat,in the saine plane as the upper set ot the pMf ages 95 and 97 as viewed in Fig. 8, is the we 101 in communication with i :D n the transvers tissage 103 termed 1n the member 1 lnd opening into the exhaust passage 10 et' the machine.

For suiY )lying the motive fluid (preterably conlpressed air) tor the machine I herein pro e one end oi.' the valve casing with an openingl 106 into .vhini the motive iiuid supply conduit may discharge. rilhe valve I provide with an axial bore 107 opening through the end of the valve adjacent the openingl 10G. Placing` the bore in communication with the exterior suriiace ot the valve are tu'o radial passages 10S respectivelyT located near opposite ends ot the valve in the plane oft the pair ot passages 91 and 95 and relativeiy to each other being diametrically opposite. 1n the same planes as the passages 108 I provide the valve with exterior arcuate grooves 109, these grooves being placed pern'ianent communication With each other by an exterior helical groove 110 'formed in the valve. At its end opposite the motive iuid intake the valve is reduced to term a stem 111 and secured thereto is the valve operating handle 112.

The operation ot the valve described is as follows 1- lliith the parts in the position shown by Figs. G and 7, irotife iiuid ivill pass through the axial bore 107 ot the valve and through the radial passages 108 into the passage 91 leading' to the lou'er port 88 viewed in Fig. S and into the passaoe 95 leading;` to the upper port 9o. At the same time. the loiver port is connected by nay of its passage 95 and grooves 109 and 110 ot the valve to the exhaust passage 101 While the upper port 82 is connected by means ot its passage 93 and corresponding valve Igroove 109 to the passage 101. This ivill cause clock-Wise rotation of the rotor. To reverse the direction ot rotation the valve is rotated degrees into the positions` shown b v Figs. 8 andi9 in which case the passages connected to the motive iluid in the positions shown by Figs. 6 and 7 are now connected to the atmosphere and vice-versa. It the valve is rotated to a position intermediate that shown by the tivo extreme positions above indicated the supply oi. motive liuid Will be throttled or it desired completely interrupted dependingl on the exact position of the valve. It will be noted that the valve is so constructed that when it is in the position in which it interrupts the supply of motive fluid, rotation of the valve in one direction will cause rotation of the motor in one direction while rotation of the valve in the opposite direction will cause the motor to rotate in the opposite direction.

Besides the exhaust discharged the valve, I also show an auxiliary exhaust port 114 located midway the two ports 85 and a similar auxiliary exhaust port 115 located midway the two ports 83. As is best shown by Figs. 3 and 5 each of these ports open radially through inner wall of the member 17 and communicate with the exhaust conduit 105. I have found that by means of these ports not only is the efficiency of the motor increased but that the siren effect of the motor is practically eliminated. As is shown by Fig. 3 the auxiliary exhaust ports are so located as to be uncovered by a tooth 47 after the tooth 47 .immediately behind it closes off the port 83 or 85 admitting the motive fluid which prevents a direct connection between the mot-ive fluid supply and exhaust. It will be noted that initial exhaust for the side gear members takes place through one of the adjacent ports 83 or 85 and that the initial exn haust for the roto-r takes place through the auxiliary exhaust ports.

For discharging the exhaust I have shown the passage 105 provided with an outlet af forded by the orifice 116 in the plate 117 and a second outlet afforded by the tapped hole 1,18 in communication with said passage and opening through the side of the base member. The plate 117 is secured to the base by screws 119 and if desired a blank plate may be substituted for the one shown and all the exhaust be conducted from the machine through the hole 118 to the latter 0f which may be 'secured a hose or other conduit to lead the exhaust to any desired place of disposal. Under ordinary conditions the hole 118 will be plugged and all the exhaust will escape through the orifice 116. By properly selecting orifices of a size dependent on the air pressure and the work of the winch I may mufl'le the exhaust to reduce the noise occasioned by the exhaust and it will be understood that plates with orifices of different size may be substituted to suit different conditions.

As illustrated the drum 120 is provided near its opposite ends with bearing members 121 and 122 joui-nailed on the sleeve. 123 car ried by an-d surrounding at its outer end the pillar 25. At opposite ends the drum is shown as provided with transverse flanges 124 and 125, flange 124 having formed integrally therewith the cylindrical flange 126 which int-eriorly makes a running fit with the exterior surface of the cylindrical flange 127 abuts the end of the flange 126 while in the surface 139 I provide a groove 141 carrying a packing ring which bears against the fiange.

.Ars illustrated, the rotor, its flange 29, the fiange 127 of the motor cover and flanges 124 and 126 of the drinn and cooperating parts of the machine form a casing for a reduction gearing by means of which the motion of the motor is transmitted to the drum. Herein the reduction gearing comprises a pair of diametrically, oppositely located, planetary pinions 143, journalled on spindles 145 carried by the disk 21. Fixed to the pillar by means of a` key 147 is Shown a gear 149 meshing with the planetary pinions while rotatably supported on the sleeve 123 is a second gear member 151 having a slightly different number of teeth from the gear member 149, and meshing with the planetary pinions. The gear member 151 is adapted by means hereinafter described to be connected to the drinn. vWhen the motor is in operation, the planetary pinions are rolled around the gear members 149 and 151'and thereby are caused to drive the drinn at a speed much less than that of the rotor, which speed is dependent on the difference in the number of teeth on the gears 149 and 151.

Herein, for connecting and disconnecting the reduction gearing to the drum, I provide the gear member 151 with projecting lugs 153 forming one set of teeth for a j aw clutch, the other set of teeth being provided by the lugs 155 which enter the recesses between the lugs 153 and are carried by a sleeve 157. The sleeve 1,57 is provided with lugs 159 and the facing portion of' the bearing member 121 of the drum with lugs 161 which coopcrate to lock the sleeve and the drum together (endwise displacement being prevented by means of screws 163 passing through the sleeve and engaging the bearing member. By making` the sleeve 157 separate from the drum I am enabled to form the former of heat treated steel and the latter of cast iron which secures a cheap but durable construction. Y

For operating the clutch I herein provide the gear member 151 with an annular groove 165,-which is engaged by the lugs 167 of a pair of shipper rods 169. The shipper rods are carried in slots 171 formed on the exlll) terior surfaces ot' the pillar and are retained in said slots by means of the bearing sleeve 123 which is slotted as is shown in Fig. 1 at 173 to permit the lugs 167 of the shipper rods to project therethrough.

For operating` the shipper rods have shown the ends ol` each opposite the lugs 167 with inwardly turned lugs 175, opposite sides et which lugs are engaged by other lugs 177 sliding in the slot 179 formed in the pillar, movement of the lugs longitudinally of the pillar operating to move the shipper bars into or ont ol engagement *ith the clutch. The lugs 177 are formed integrally with a cylindrical member 181 received in the bore 183 formed axially through the end portion of the pillar, the cylindrical member exteriorly ot the pillar being` reduced in diameter and having` formed thereon a high pitch screw-threaded portion 184 which is engaged by a nut 185, rotation et which will act to reciprocate the member. The drum is held on the pillar by means of a plate 187 secured to the pillar bv means of a plurality ol'I screws 189. rllhe nut 185 is journalled in an axial perforation ot the plate 187 and is provided with a flange 190 resting against the exterior surface of the plate and engaged by the retaining cap 191 secured to the plate 187 by means ot screws 193. Integrally formed with the nut and for turning it is a crank arm 195 having a handle 197. For holding the nut in its ad- `iusted positions I form in the surface of the cap 191 facing the handle spaced slots 199 adapted to be engaged by a latch 201 received in the slot 203 of the crank and pivoted thereto by means of a pin 205. The latch is operated by means of a button 297 received in the recesses 209 of the handle 197, which button is provided with a stem 211 having a notch 213 engaging the end ot the latch. Between the bottom of the recess 209 of the handle and the facing surlace of the button is located a compression spring` 215 which normally acts to hold the latch in engagement with the slots 199.

For lubricatingv the machine I have shown the base ot' the motor with a conduit 217 opening' into the space beneath the rotor. Communicating with the conduit 217 is a second conduit 219 termed at right angles to the conduit 217 in the walls ot the member 17 and the motor cover. Each conduit is provided with a tillingplug 221 and it will be noted that by this arrangement lubricant may be readily supplied when the machine is mounted on either a column or a horizontal bar. The disk 21 ol' the rotor ol the motor I provide with a perforation 228 which establishes communication between the opposite sides oi the rotor and permits lubricant admitted through the conduits 217 and 219 to lind its way into the gearing and also serves to balance the pressure on opposite sides of the rotor, which otherwise would be unbalanced due to the leakage which may occur about the paclings 37. The lubricant also tinds its way through a passage 225 'formed in the drum to lubricate the beariilg` members ol the drum and through a passage in the disk 21 into longitudinal passages formed in the spindles 1&15 whence it passes through radial passages 228 to the bearing' surfaces ot' said spindles. For venti the air wnich escapes around the packn in J 37 l provide a conduit 229 termed in the pillar and 'openingI into the exhaust pas sages oit the motor.

' F or connecting' the cable indicated at 230 in Fig. 18 to the drum l have shown the tace et the drum with an opening 291 and the bearing' member 122 with an opening 233 through which openings the end of the cable may be threaded into the interior oit the drum and then threaded through the eye et the bolt 237. rlhe shank ol" the bolt 237 extends through an opening 239 tormedin the drum and enteriorly ot the latter is pro'ided with a screw threaded end having thereon the nut 211 by means ot which the bolt may lorce the end ot the cable into the slot 243 to ,grip the cable.

This application discloses and claims an improvement et the invention shovn and more broadly claimed in my co-pending application Serial No. 455,927, tiled March 26, 1921.

Although I have herein described one example ol' my invention it is to be understood that l am not limited thereto and that wide deviations may be made without departing trom the spirit ot my invention.

1 claim:

1. 1n a machine of the character described, a pillar, a disk mounted on said pillar for rotation, a substantially annular casingr surrounding the peripheral portion et said disk, said casing,` in radial planes which include the axis ot said pillar being' substantially U shaped in cross-section with the open side et the U facing said pillar, means at the periphery of said diss tor actuation thereof by iuid pressure, a flange on said disk closing' the open side of said casing, .studs carried by said disk in parallel relation to said pillar internally ot said tlange, a drum rotatably mounted on said pillar substantially abutting' said annular casina` to term in conjunction with said casinp; and disk a substantially closed Lfear chamber, a fixed gear on said pillar adjacent said disk, a gear in said chamber in driving' relation to said drum, and planetary pinions on said studs meshingv with both lgears.

2. ln a machine of the character described, a drum, gearingl for drivingi said drum, a fluid pressure motor for driving said gearing, said motor comprising a plurality ot expansible motor chambers forming an annulus at the periphery of said motor, said drum substantially abutting one side of said annulus to form therewith a chamber, and said gearing being located in said chambe-r and surrounded by said annulus.

3. In a machine of the character described, a base, means for securingl said base to a support, a pillar carried by said base, a motor carried by said base and comprising a member having a peripheral portion acted upon by fiuid pressure and a central portion mounted for rotation on said pillar, a casing for the peripheral portion only of said member, studs carried by said central portion and surrounded by said casing, planetary pinions carried by said studs, a drum having an end abutting said casing and forming with said casing a casing for said pinions, a gear for connection to said drum meshing with said pinions, and a gear fixed to said pillar meshing with said pinions.

4L. In a machine of the character described, a base, means for securing said base to a support, a pillar carried by said base, a motor carried by said base and comprising peripheral parts acted upon by fluid pressure and a central portion mounted for rotation on said pillar, a casing for the peripheral portion only of said member, studs carried by said central portion and surrounded by said casing, planetary pinions carried by said studs, a drum having an end abutting` said casing and forming with said casing a casing for said pinions, a gear for connection to said drum and meshing with said pinions, a gear fixed to said pillar and meshing with said pinions, and control means comprising a manually actuated member located eXteriorly of' said drum for at will connecting or disconnecting said first named gear to or from said drum.

5. In a machine of the character described, a drum, a motor for driving said drum and comprising a rotor, spaced members for housing the sides of said rotor, one of said members having an interior cylindrical opening, a flange carried by said rotor and extending into said opening and being in Huid tight relation therewith, said 'drum beinoaligned with said rotor and having an end adjacent said cylindrical opening, and gearing for rotating said rum, said gearing being driven by said rotor and located within said opening.

G. In a machine of the character described, a motor comprising a rotor, a drum, a pillar rotatably supporting said rotor and drum in aligned relation, a casing for the periphery of said rotorliaving a portion affording a cylindrical opening coaxial with said rotor, a flange carried by said rotor and entering said opening for closing the inner annular side of said casing, a flange carried by said drum and surrounding said portion,

and gearing housed by said casing and drum in the space between .said rotor and drum.

7. In a machine of the character described, a drum, a stationary pillar, a bearing member carried by said drum for supporting said drum on said pillar, an eye bolt having its head arranged interiorly of said drum and its shank mounted in said bearing member; means permitting threading of the end `of a cable through said drum, its bearing member and the eye of said bolt; and a nut for said bolt and arranged exteriorly of said bearing member for causing said bolt to clamp said cable against said bearing member.

8. In a winch, a pillar, a drum mounted on said pillar for rotation, a rotor mounted on said pillar for rotation, a casing for the peripheral portion of said rotor, means for admitting pressure fluid to said casing to cause rotation of said rotor, flanges carried adjacent said peripheral portion and in fluid tight relation to said casing, reduction gearing connecting said rotor to said drum, said gearing including a planetary pinion carried by said rotor interiorly of said flanges, and

fixed and loose gears meshing with saidpinion and mounted coaXially with said rotor.

9. A winch having in combination, a pillar, .a rotor mounted on said pillar, said rotor having an' annular flange adjacent its periphery, a casing surrounding said flange and forming therewith an annular chamber eXteriorly of said flange, means for admitting a pressure fluid to said annular chamber, parts carried by Isaid rotor and situated in said annular chamber, said parts being operated upon by said pressure fluid for causing rotation of said rotor, a drum on said pillar, said drum in conjunction with said casing and said rotor forming a closed chamber, a pinion in said closed chamber rotatably mounted upon said rotor and surrounded by said casing forming said annular chamber, a gear non-rotatably carried by said pillar and meshing with said pinion, a driving gear for said drum meshing with said pinion, and said pinion and respective gears affording two gear sets of slightly different gear ratio.

IO. A winch having in combination, a pillar, a rotor mounted on said pillar, said rotor having an annular flange adjacent its periphery, a casing surrounding said flange and forming therewith an annular chamber exteriorly of .said flange, means for admitting a pressure fluid to said annular chamber, parts carried by said rotor and situated in said annular chamber, said parts being operated upon by said pressure fluid for causing rotation of said rotor, a drum on said pillar, said drum in conjunction with said casing and said rotor forming a closed chamber, a pinion in said closed chamber rotatably mounted upon said rotor and surrounded by said casing forming said annular chamber, a pair of gears surrounding said pillar and both meshing with said pinion, attaching means for connecting one of said pair of gears to said pillar', attaching means for Connecting the other of said pair of gears to said drum, operator actuated means for rendering one of said attaching means inoperative, and said pinion and respective gears afording two gear sets of slightly different gear ratio.

ll. A Winch having in combination, a pillar, a rotor mounted on said pillar, said rotor having an annular flange adjacent its periphery, a casing surrounding said flange and forming therewith an annular chamber exteriorly of said flange, means for admitting a pressure fluid to said annular chamber, parts carried by .said rotor and situated in said annular chamber, said parts being operated upon by said pr ssure fluid for causing rotation of said rotor, a drum on said pillar, said drum in conjunction With said casing and said rotor forming a closed chamber, and gearing in said closed chamber surrounded by said casing forming said annular chamber for causing said rotor to drive said drum.

l2. A Winch having in combination, a pillar, a rotor mounted on said pillar, said rotor having an annular flange adjacent its periphery, a casing surrounding said flange and forming therewith an annular chamber exteriorly of said flange, means for admitting a pressure fiuid to said annular chamber, parts carried by said rotor and situated in said annular chamber, said parts being operated upon by said pressure duid for causing rotation of said rotor, a drum on said pillar, said drum in conjunction with said casing and said rotor forming a closed chamber, and gearing in said closed chainber surrounded by said casing forming said annular chamber including a pinion rotatably carried by said rotor and bodily rotatmeagre able therewith for causing said rotor to drive said drum.

13. A Winch having in combination, a pillar, a rotor mounted on said pillar, said rotor having an annular flange adjacent its periphery, a casing surrounding said flange and forming therewith an annular chamber exteriorly of said flange, means for admitting a pressure fluid to said annular chamber, parts carried by said rotor and situated in said annular chamber', said parts being operated upon by said pressure fluid for causing rotation of said rotor, a drum on said pillar, said drum in conjunction with said casing and said rotor forming closed chamber, gearing in said closed chamber surrounded by said casing forming said annular chamber for causing said rotor to drive .said drum, and means carried at the end of said pillar for rendering said gearing inoperative or operative at Will.

la. A Wincn having in combination, a pillar, a rotor mounted on said pillar, said rotor having an annular flange adjacent its periphery, a casing surrounding said flange a d forming therewith an annular chamber enteriorly of said flange, means for admitting a pressure fluid to said annular chamber, parts carried by .said rotor and situated in said annular chamber, said parts being operated upon by said pressure fluid for causing rotation of said rotor, a drum on said pillar, said drum in conjunction with said casing and said rotor forming a closed chamber, gearing in said closed eliamber surrounded by said casing forming said annular' chamber including a pinion bodily rotatably carrier by said rotor and rotatable therevfitl for causing said rotor to drive said drum, and means carried at the end of said pillar for rendering said gearing inoperative or operative at will.

in testimony whereof, l have signed my name to this specification.

GEO. H. GILh/IN.

Certificate of Correction,

It is hereby certied that in Letters Patent No. 1,608,97 9, granted November 30, 1926, upon the application of George H. Gilman, of Belmont, Massachusetts, for an improvement in Winches, errors appear in the printed specification requiring Correction as follows: Page 6, line 83, claim 14, strike out the Word bodily same claim, line 84E, for the Word carrier read carried and before the Word rotatable insert the Word bodily; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the oase in the Patent Office.

Signed and sealed this 4th day of January, A. D. 1927.

l [SEAL] M. J. MOORE,

Acting Uommzssomar of Patents. 

